<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <el-form ref="loginRef" :model="loginForm" :rules="loginRules" label-width="0px" class="login_form">
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetFrom">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginRules: {
        username: [
          {required: true, message: "请输入用户名", trigger: "blur"},
          {min: 3, max: 10, message: "长度在 3 到 10 个字符", trigger: "blur"}
        ],
        password: [
          {required: true, message: "请输入密码", trigger: "blur"},
          {min: 6, max: 10, message: "长度在 6 到 10 个字符", trigger: "blur"}
        ]
      }
    }
  },
  methods: {
    resetFrom() {
      this.$refs.loginRef.resetFields();
    },
    login() {
      this.$refs.loginRef.validate(async (valid) => {
        if (!valid) return;
        const {data: res} = await this.$http.post("login", this.loginForm)
        if (res.meta.status != 200) return this.$message.error('登录失败!')
        this.$message.success('登陆成功')
        window.sessionStorage.setItem('token', res.data.token);
        this.$router.push('/home');
      })
    }
  }
}
</script>

<style scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 5px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.avatar_box {
  width: 130px;
  height: 130px;
  border: solid 1px #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #fff;
}

.avatar_box img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #eee;
}

.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}

</style>